Understanding Scientific Notation Concepts

The video tutorial explains how to rewrite numbers expressed in scientific notation. It covers the conversion of both positive and negative numbers by moving the decimal point. For positive numbers, the decimal is moved to the right, resulting in a larger number. For negative numbers, the decimal is moved to the left, resulting in a smaller number. The tutorial provides examples to illustrate these concepts.

What happens to a number when it is written in scientific notation with a positive exponent?

• The number becomes larger.

• The number becomes negative.

• The number becomes smaller.

• The number remains the same.

How many places do you move the decimal point for the number 4.7 with a positive exponent of 5?

• 6 places

• 5 places

• 4 places

• 3 places

What is the standard form of 4.7 x 10^5?

• 4,700

• 47,000

• 470,000

• 4,700,000

When converting a number with a negative exponent in scientific notation, in which direction do you move the decimal point?

• To the left

• To the right

• Downwards

• Upwards

What is the standard form of 4.7 x 10^-5?

• 0.047

• 0.0047

• 0.00047

• 0.000047